[RobZL1]

#2- yes, you can set it up to basically just report the ethanol content in pump gas. Kind of a lot of effort to do that without planning to run Ethanol content, though.

Once you turn it on in the tune, there are a ton of tables that will now get referenced. You could just populate them with zeros and ones as needed to make them essentially inactive when they are referenced, as well as maintaining the AFR for pump gas across the board in the tune.

Doing those things would basically allow you to read the ethanol content in pump gas and not affect the way the car runs. Seems like a lot of effort unless you're doing it yourself to learn and play within HPTuners. If you're paying someone, just wait until you get the full ethanol setup (fueling system to support it) before you bother, in my opinion.